Flexible or portable closure – partition – or panel – Pleating type
Patent
1983-12-19
1987-08-18
Britts, Ramon S.
Flexible or portable closure, partition, or panel
Pleating type
160279, A47H 308, E06B 9262
Patent
active
046870385
ABSTRACT:
A pleated fabric is connected between an upper fixed sill and a movable sill. The movable sill is between the upper fixed sill and a lower fixed sill. Two string loops are resiliently secured to the sills and slidably frictionally engaged with the movable sill symmetrical relative to the sills and to a central axis parallel to the direction of movement of the movable sill. The tension in the strings is adjustably set by a single tension spring and a turnbuckle connected between and to the loops. The friction engagement of the strings to the movable sill is set to a friction load having a value which provides smooth operation and tends to keep the movable sill in place at whatever location the sill is moved to regardless the blind orientation relative to gravity.
REFERENCES:
patent: 560133 (1896-05-01), Emery
patent: 824772 (1906-07-01), Yarger
patent: 1289281 (1918-12-01), Shaft
patent: 2681823 (1954-06-01), Gaisman
patent: 3946788 (1976-03-01), van Muyen
patent: 4202395 (1980-05-01), Heck
patent: 4212341 (1980-07-01), Fisher
patent: 4473101 (1984-09-01), Langeler
patent: 4557309 (1985-12-01), Judkins
"Verosol for Skylights Pleated Blinds for Awkward Situations".
"How to Install Your Gravity Pull 100 Series Verosol SkyShade".
"How to Measure for Your Gravity Pull 100 Series Verosol SkyShade".
Britts Ramon S.
Coronet Industries, Inc.
Lieberman Cherney S.
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